How to remove an option that has been selected?

Question

So im trying to do a card game where in a player will pick between 5 options and after selecting one of the option it is lessened
Ex.
[1]
[2]
[3]
[4]
[5]

After picking one.
[1]
[2]
[3]
[4]

I comepletely have no idea on how to do the code or maybe i have forgotten that it was in my previous lessons but couldnt remember it.

Answer 1

You can use a vector then you can use vector.erase().

Or you can use std::remove defined in <algorithm>

remove(arr.begin(), arr.end(), val)

It will remove every elements contain that value.